Extraction of ho-sho (Cinnamomum camphora nees and eberm var. Linaloolifera fujita) essential oil with supercritical CO2: experiments and modeling

Abstract

-Supercritical CO 2 extraction of essential oil from the leaves of a variety of camphor tree known as Ho-Sho was studied. Experiments were carried out within the following ranges: CO 2 flow rate (1 -4 mL/min); pressure (80 -100 bar); temperature (40 -60 o C) and particle size (0.37 -1.0 mm). The equipment used was an HP 8670 T extractor module with an extraction cell volume of 7 mL. Two mathematical models of the process were proposed. Model 1 was a modified version of the traditional shrinking core model with effective diffusivity and the external mass transfer coefficient as the fitting parameters. Model 2 used an additional kinetic parameter based on an Arrhenius-like expression. Both models took into account the cell pressurization step. The best fit between the extraction model curves and the experimental data was obtained using model 2.

Supercritical fluid extraction of volatile and non-volatile compounds from Schinus molle L.

“…Several mathematical models have been employed to simulate supercritical fluid extraction from vegetable matrixes (Grosso et al, 2010;Steffani et al, 2006;Silva et al, 2008). In this work, the mathematical model used to fit the experimental data was that proposed by Sovová (2005).…”

Influence of arbuscular mycorrhizal fungi on growth, mineral composition and production of essential oil in Mentha × piperita L. var. citrata (Ehrh.) Briq. under two phosphorus levels

“…belongs to the Lamiaceae family and the main components of its essential oils are linalool and linalyl acetate (Garlet et al, 2013). The presence of these compounds increases economic interest in this species, since they are used in the perfumery, cosmetics, food, pharmaceutical, fragrances and tobacco industries, mainly as a flavoring (Steffani et al, 2006;Garlet et al, 2013). From a plant biology perspective, these compounds are associated with defense against pathogens and herbivores, and with attraction of pollinators (Croteau et al, 2000).…”

“…Plants Res. and tobacco industries, mainly as a flavoring (Steffani et al, 2006;Garlet et al, 2013). From a plant biology perspective, these compounds are associated with defense against pathogens and herbivores, and with attraction of pollinators (Croteau et al, 2000).…”

Sanitizantes clorados no setor alimentício: mini-revisão

“…A transferência dos constituintes solúveis presentes na planta ocorre após um tempo e então, efetua-se a separação das fases sólida e líquida. A obtenção do óleo se dá pela evaporação do solvente presente na fase líquida(STEFFANI, 2003).Extração por CO2 supercrítico: consiste em recuperar os aromas naturais do óleo essencial, obtêmse óleos essenciais de melhor qualidade, de grande potencial terapêutico, e mantém a integridade dos compostos ativos(PINHEIRO, 2003). Para extração industrial de óleos essenciais esse método é ideal.…”